FAIRMol

MK213

Pose ID 11151 Compound 741 Pose 308

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T17
T. brucei TR (Doorstop site) T. brucei Doorstop site
Ligand MK213
PDB5S9T

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
23.2 kcal/mol
Protein clashes
0
Internal clashes
11
Native overlap
contact recall 0.67, Jaccard 0.36, H-bond role recall 0.00
Burial
81%
Hydrophobic fit
80%
Reason: 11 internal clashes
11 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.712 kcal/mol/HA) ✓ Good fit quality (FQ -6.86) ✓ Good H-bonds (5 bonds) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ High strain energy (23.2 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-21.344
kcal/mol
LE
-0.712
kcal/mol/HA
Fit Quality
-6.86
FQ (Leeson)
HAC
30
heavy atoms
MW
409
Da
LogP
3.80
cLogP
Strain ΔE
23.2 kcal/mol
SASA buried
81%
Lipo contact
80% BSA apolar/total
SASA unbound
689 Ų
Apolar buried
449 Ų

Interaction summary

HB 5 HY 19 PI 3 CLASH 0

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

No clash · clashes detected for this pose.
Final rank3.819Score-21.344
Inter norm-0.792Intra norm0.081
Top1000noExcludedno
Contacts18H-bonds5
Artifact reasongeometry warning; 11 clashes; 2 protein clashes; moderate strain Δ 23.2
Residues
ALA284 ALA365 ARG287 GLY195 GLY196 GLY197 GLY286 ILE199 ILE285 LEU332 LEU334 MET333 PHE198 PHE230 SER200 SER364 TYR221 VAL366

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap8Native recall0.67
Jaccard0.36RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

1033 residues
Protein targetT17Atoms15160
Residues1033Chains2
Residue summaryVAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408

Receptor context

2 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 2 Excluded HETATM 0
Kept cofactors / ions
A:FAD501 B:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
270 0.41464125782172895 -1.24727 -30.931 5 18 0 0.00 0.00 - no Open
254 0.6988781872574225 -1.25188 -32.2522 4 18 0 0.00 0.00 - no Open
251 0.7250052548167374 -1.13109 -29.7477 9 16 0 0.00 0.00 - no Open
261 1.0426509139693059 -1.20512 -33.9388 8 16 0 0.00 0.00 - no Open
325 1.1123859942003849 -0.870106 -23.9953 5 17 0 0.00 0.00 - no Open
284 1.2799241570993618 -0.701211 -16.1709 2 15 0 0.00 0.00 - no Open
261 2.1714771596576723 -0.876999 -24.0478 4 20 0 0.00 0.00 - no Open
242 2.173345721097384 -0.939642 -26.2628 3 17 0 0.00 0.00 - no Open
268 2.258376845222224 -1.34754 -36.7611 6 18 0 0.00 0.00 - no Open
286 2.455516370069698 -0.756571 -20.7825 5 16 0 0.00 0.00 - no Open
231 2.507441772388101 -0.993468 -27.2209 10 16 0 0.00 0.00 - no Open
388 2.646525773858347 -0.921618 -24.6948 7 9 0 0.00 0.00 - no Open
310 3.2694404438220586 -0.809948 -22.0335 6 20 9 0.75 0.00 - no Open
382 3.283984438521126 -0.790489 -19.8104 10 13 0 0.00 0.00 - no Open
207 3.3094615427951894 -1.10423 -30.2339 10 20 0 0.00 0.00 - no Open
234 3.409408458633953 -1.09234 -29.4077 12 20 0 0.00 0.00 - no Open
245 3.4162752319055487 -0.920939 -25.2102 5 18 0 0.00 0.00 - no Open
310 3.5161728665857086 -0.795591 -22.0764 7 13 0 0.00 0.00 - no Open
391 3.596788774445806 -0.962215 -24.9581 7 10 0 0.00 0.00 - no Open
187 3.6651296797272988 -1.08872 -28.1762 10 20 0 0.00 0.00 - no Open
308 3.819364771089957 -0.792144 -21.3443 5 18 8 0.67 0.00 - no Current
264 3.966830308384504 -0.853893 -24.9405 6 14 0 0.00 0.00 - no Open
286 4.439393815944125 -0.990465 -24.6013 12 19 0 0.00 0.00 - no Open
283 4.505496780270578 -0.967133 -27.3864 10 16 0 0.00 0.00 - no Open
290 4.658138957438228 -0.76781 -20.3267 6 18 8 0.67 0.00 - no Open

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -21.344kcal/mol
Ligand efficiency (LE) -0.7115kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.863
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 409.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.80
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.17kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 52.84kcal/mol
Minimised FF energy 29.67kcal/mol

SASA & burial

✓ computed
SASA (unbound) 689.3Ų
Total solvent-accessible surface area of free ligand
BSA total 560.2Ų
Buried surface area upon binding
BSA apolar 448.9Ų
Hydrophobic contacts buried
BSA polar 111.3Ų
Polar contacts buried
Fraction buried 81.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6595.7Ų
SASA_nonpolar(complex) − SASA_nonpolar(receptor) − SASA_nonpolar(ligand free). Negative = non-polar surface buried upon binding. Requires full polarity-decomposed SASA computation.
Receptor non-polar SASA 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2044.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)